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Northwest Africa 5012 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 5012 This is an OFFICIAL meteorite name. Abbreviation: NWA 5012 Observed fall: No Year found: 2007 Country: (Northwest Africa) Mass: 700 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 62 approved meteorites classified as L3-6. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 31 Mar 2016 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Northwest Africa 5012 (NWA 5012) (Northwest Africa) Purchased: 2007 Classification: Ordinary chondrite (L3-6) History: The meteorite was found by an anonymous finder in northwest Africa and bought by the main mass holder in Morocco. Physical characteristics: One brownish fragment without fusion crust weighing 700 g was found. Petrography: The sample is a brecciated meteorite consisting of light-gray and more brownish angular clasts of different petrologic types. Plagioclase grain size in L5 clasts is about 25 μm and in L6 clasts about 60 μm. In the type 3 fragments chondrules are well recognizable. Geochemistry: In type 3 lithology, olivine and pyroxene are unequilibrated with Fa14.5±8.1 (3.0-36.9, n=22) and Fs12.9±6.9Wo 0.7±0.6 (Fs3.4-23.9Wo0.1-2.2, n=26). Type 6 fragments are completely recrystallized and the silicates show homogeneous chemical composition at Fa25.0±0.2, n=33 and Fs19.8±0.5Wo1.9±0.2, n=34. | ||||||||||||||||||||||||||||||
Data from: MB105 Table 0 Line 0: |
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Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) Stehlik: Harald Stehlik, 1220 Wien, Austria (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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